Adiantum phyllitidis

A lowland maidenhair of the Guiana Shield and northern South America with simply pinnate fronds of broad, undivided pinnae, quite unlike the lacy maidenhairs of the trade. Most records are from Guyana, from near sea level to 800 m. Grow it warm, shaded and constantly humid, like other Amazonian forest-floor Adiantum.

At home, aim for

Day Warm-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Humid airBand in Plantistry

Light ShadeDLI and PPFD in Plantistry

No rest periodGrows in the ground

Where it grows wild

Not described in the sources checked. Its range and elevations point to the floor of humid lowland rainforest, where related simply pinnate Adiantum grow on shaded, well-drained slopes and stream banks. This is inferred.

Recorded from 5 to 800 m, median 213 m (43 records).

GuyanaSurinameFrench GuianaVenezuelaColombiaPanamáBrazil NorthBrazil NortheastBrazil SoutheastBrazil West-CentralDominican Republic

🔒 Growing it like that

The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:

✓ Day and night temperature targets, and the limits it tolerates

✓ Humidity band, and how to hold it

✓ Light as DLI and PPFD for a grow light

✓ Wet and dry seasons, and whether to rest it

✓ Substrate and airflow

✓ A step-by-step setup to grow it like the wild

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Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app.